Which of the following is called energy of activation or eact?
a) the energy released during an exergonic reaction .
b) the additional energy required for reactions to occur spontaneously .
c) the energy consumed during an endergonic reaction

One or more substances changing into one or more substances is an example of a

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)